Finding the Fourth Proportional to 31,000.56, 42,784.92 and 19,854.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,000.56 : 42,784.92 = 19,854.96 : x
2. Step 2: Convert to fraction form
   31,000.56/42,784.92 = 19,854.96/x
3. Step 3: Cross multiply
   31,000.56x = 42,784.92 × 19,854.96
4. Step 4: Simplify right side
   31,000.56x = 849,492,875.20
5. Step 5: Solve for x
   x = 849,492,875.20/31,000.56
6. Step 6: Final answer
   x = 27,402.50